<!DOCTYPE html>
<html>
	<head>
		<meta charset="GB2312">
		<title>frame</title>
	</head>

<frameset cols="25%,25%,50%">
  	<frame src="a.html" />
  	<frame src="b.html" />
  	<frame src="c.html" />
</frameset>
000999
</html>
